M. Vales et al., Enaminones acylation: Competitive formation of quinolin-4-one and isoquinolin-1-one derivatives, SYNTHESIS-S, (16), 2001, pp. 2419-2426
The reaction of enaminones with some o-halogenobenzoyl chlorides allows the
preparation of 3-acyl-2-alkylquinolin-4-one and/or 4-acyl-3-alkylisoquinol
in-1-one derivatives depending on the structure of the starting materials.
Due to their easy availability the compounds prepared are attractive precur
sors for further synthesis of polycondensed heterocycles.